20521664

素因数分解:

$2^6\times {\mathrm{43}}^1\times {\mathrm{7457}}^1$

素因数の和:7512

約数の個数: 28

約数和(自身を含む): 41675304

約数和(自身を除く): 21153640

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 172, 344, 688, 1376, 2752, 7457, 14914, 29828, 59656, 119312, 238624, 320651, 477248, 641302, 1282604, 2565208, 5130416, 10260832, 20521664]

約数ペア:

[(1, 20521664), (2, 10260832), (4, 5130416), (8, 2565208), (16, 1282604), (32, 641302), (43, 477248), (64, 320651), (86, 238624), (172, 119312), (344, 59656), (688, 29828), (1376, 14914), (2752, 7457)]